What should I do while I'm in Adelaide?

So I (27f) have decided I might want to move to Adelaide now my favourite uncle lives there and as part of my due diligence, I am coming down for a week in July to check everything out. Given I have only been to Adelaide once and I was 16 at the time (over a decade ago), I have very little knowledge of what in particular I should be checking out.

So please drop your recommendations of what I should do/see while I am down. I plan on going hiking, and will probably take a day or two just exploring the city, but what else should I absolutely see before coming back home and making my decision?

I have done some googling but locals always know better, so I figured here would be the best place to ask.